[FFmpeg-user] Samsung HanWha QNV-7010RN Security Camera Stream - No Sound with ffplay

Moritz Barsnick barsnick at gmx.net
Sat Jun 8 23:34:11 EEST 2019

On Sat, Jun 08, 2019 at 15:50:35 +0000, Patrick Kirchner via ffmpeg-user wrote:
> I have no luck with ffplay using "-af aresample=32000" and when I try to change it to "-ac 2" I get this type of complaint:
> [g726le @ 0x7f7070006600] Decoding more than one channel is not implemented. Update your FFmpeg version to the newest one from Git. If the problem still occurs, it means that your file has a feature which has not been implemented.

"-ac 2" probably forces ffprobe to assume that the *input* has two
channels, which apparently isn't supported.

Did you read Carl Eugen's suggestion to try "-af aresample=ocl=stereo"?

> With MPlayer, there are audio output options to chose either sdl or
> alsa seperately, but it seems that ffplay can only use alsa along
> with sdl.

I believe it's SDL which has the ALSA implementation, ffplay only uses
the SDL API. (I may be wrong though.)

ffplay is sort of minimalistic feature-wise. Do you definitely need
ffplay? Do you have access to mpv?


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